Roly Beevor on tue 1 nov 05
Hi Jock and welcome,
I hope your question doesn't get ignored. It is an interesting one, though
as it comes at the end of your post I fear it might be missed. It would
seem that your cracks are unlikely to be due to poor structure in the work,
or sudden cooling, you will have come across these things over the years, so
my guess is that you have an unexpected change in materials, so that your
glaze no longer fits your body sufficiently well, and you are getting
dunting?
There are people on the list who can really answer your question, but they
proabaly need to know more about your body and glaze and the shape of the
cracks. Is it possible that any of your glaze materials have changed
specification, or your water is different?
Good luck finding the answer
Roly
-----Original Message-----
From: "Jock"
To:
Date: 31 October 2005 20:16
Subject: New Member
.....>I am having a firing problem. I have a small LP fired kiln which I
have
>been using for about the last 8 years. The problem is: after a bisque
>firing of cone 06 I glaze fire to cone 6. When I open the kiln after the
>final firing I have cracked pieces (on the sides, top, but not 'S'
>cracks however) This has even happened to some tile pieces that are
>flat. I stilted them with 3-4 stilts. This started about a year and half
>ago but is progressively getting worse. I hate losing so much time,
>clay, glaze and did I mention TIME! This is driving me NUTS! I've been
>told though that isn't far to drive. Any IDEAS!!! THANK YOU!
>
>L.E. Jochimsen
>JOC"S POTS
>Camano Island, WA
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